AES Budapest 2012
Paper Session P17
P17 - Audio Effects
Saturday, April 28, 11:30 — 13:00 (Room: Lehar)
P17-1 Amplitude Manipulation for Perceived Movement in Depth—Sonia Wilkie, Tony Stockman, Joshua D. Reiss, Queen Mary University of London - London, UK
The presentation of objects moving in depth toward the viewer (looming) is a technique used in film (particularly those in 3-D) to assist in drawing the viewer into the created world. The sounds that accompany these looming objects can affect the extent to which a viewer can perceptually immerse within the multidimensional world and interact with moving objects. However the extent to which sound parameters should be manipulated remains unclear. For example, amplitude, spectral components, reverb and spatialization can all be altered, but the degree of their alteration and the resulting perception generated, need greater investigation. This paper presents the results from an investigation into one of the sound parameters used as an audio cue in looming scenes by the film industry, namely amplitude, reporting the degree and slope of their manipulation.
Convention Paper 8655 (Purchase now)
P17-2 Virtual 5.1 Channel Reproduction of Stereo Sound for Mobile Devices—Kangeun Lee, Changyong Son, Dohyung Kim, Shihwa Lee, Samsung Advanced Institute of Technology - Suwon, Korea
With rapid development in mobile devices, consumer demand for a premium sound experience is growing. In this paper a method for 5.1 channel upmixing is introduced. First, the primary and ambience components are separated and the primary signal is decomposed into the standard 5.1 channel direction. Since all separated sources should appear in the upmixed output, we designed the new masking scheme for panning coefficient. In order to reproduce the 5.1 channel sound field in the earphone or headset, the decomposed multichannel signal is virtually rendered by means of HRTF. The proposed method was compared with conventional upmixing methods and demonstrated better spatiality image and panning effects with very low complexity requirements, which allows easy implementation on a wide variety of platforms.
Convention Paper 8656 (Purchase now)
P17-3 From Short- to Long-Range Signal Tunneling—Alexander Carôt, Hochschule Anhalt - Köthen/Anhalt, Germany; Horst Aichmann, Agilent Technologies - Kronberg, Germany
Research results in superluminal pulse transmission indicate propagation with velocities faster than the speed of light. This has so far been considered a short-range effect to be applied within distances of several centimeters. Based on these results and the corresponding theory of quantum tunneling the authors
revisit such experiments with distances of several meters. They show that long-range superluminal signal transmission is possible and that it is only restricted by the actual signal bandwidth.
Convention Paper 8657 (Purchase now)
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